GB1127385A - Magnetic latching switch - Google Patents

Magnetic latching switch

Info

Publication number
GB1127385A
GB1127385A GB30758/66A GB3075866A GB1127385A GB 1127385 A GB1127385 A GB 1127385A GB 30758/66 A GB30758/66 A GB 30758/66A GB 3075866 A GB3075866 A GB 3075866A GB 1127385 A GB1127385 A GB 1127385A
Authority
GB
United Kingdom
Prior art keywords
magnet
marker
potential
release
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB30758/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1127385A publication Critical patent/GB1127385A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/22—Switches without multi-position wipers
    • H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch

Landscapes

  • Interface Circuits In Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

1,127,385. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 8 July, 1966 [13 July, 1965], No. 30758/66. Heading H4K. [Also in Division H1] In a multistage cross-bar switching network, the hold magnets are held by remanence. The magnet cores may be made of a combination of hard and soft magnetic materials or some of the turns of the magnet coils may be coupled to each other via diodes such that, overall, the magnet's characteristic is asymmetric whereby in the " on " position its core is saturated whereas in the " off " position the core is unsaturated. In the simple three stage network shown, the hold magnets selected by the marker are pulsed over leads 116 &c. with a positive voltage which is sufficient to saturate the magnet cores. A metallic sleeve wire path is thus completed between the subscribers line circuit, cut-off relay CO and the trunk circuit sleeve relay SL, the marker maintaining earth potential on leads 116 at this time. Supervisory relay S comes up to hold CO and SL to ground potential and to release the marker. At the end of the call, S falls back whereby negative potential via CO and SL pulses hold magnets 115 and 118 to bring about their release. Magnet 117 may or may not release but since ground potential has been removed from the sleeve wire it will be automatically released and test free on the next occasion that the marker applies negative test potential to its lead 140.
GB30758/66A 1965-07-13 1966-07-08 Magnetic latching switch Expired GB1127385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471574A US3400225A (en) 1965-07-13 1965-07-13 Magnetic latching switch having residual magnetism for crosspoint hold means

Publications (1)

Publication Number Publication Date
GB1127385A true GB1127385A (en) 1968-09-18

Family

ID=23872148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30758/66A Expired GB1127385A (en) 1965-07-13 1966-07-08 Magnetic latching switch

Country Status (6)

Country Link
US (1) US3400225A (en)
BE (1) BE684041A (en)
BR (1) BR6681203D0 (en)
DE (1) DE1285013B (en)
GB (1) GB1127385A (en)
NL (1) NL6609807A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863035A (en) * 1972-06-20 1975-01-28 Lynch Communication Systems Call concentrator switching matrix
US6380787B1 (en) * 1999-08-31 2002-04-30 Micron Technology, Inc. Integrated circuit and method for minimizing clock skews
US20060219498A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060219497A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US8403124B2 (en) * 2005-03-30 2013-03-26 Strattec Security Corporation Residual magnetic devices and methods
US20060219496A1 (en) * 2005-03-30 2006-10-05 Dimig Steven J Residual magnetic devices and methods
US20060226942A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods
US20060219499A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060237959A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US7969705B2 (en) 2005-03-30 2011-06-28 Strattec Security Corporation Residual magnetic devices and methods
US20060238284A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US7401483B2 (en) * 2005-03-30 2008-07-22 Strattec Security Corporation Residual magnetic devices and methods for an ignition actuation blockage device
US20060219513A1 (en) * 2005-03-30 2006-10-05 Organek Gregory J Residual magnetic devices and methods
US20060238285A1 (en) * 2005-03-30 2006-10-26 Dimig Steven J Residual magnetic devices and methods
US20060226941A1 (en) * 2005-03-30 2006-10-12 Dimig Steven J Residual magnetic devices and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955064C (en) * 1952-08-29 1956-12-27 Ericsson Telefon Ab L M Circuit arrangement for self-connection telephone systems with relay and coordinate dialers
BE518743A (en) * 1953-03-18
NL236109A (en) * 1958-02-14
DE1143237B (en) * 1961-09-15 1963-02-07 Telefunken Patent Circuit arrangement for telephone exchanges for occupying, blocking and triggering a dialer designed as a multi-armature stick relay with inverse contact actuation
GB1051670A (en) * 1962-06-28

Also Published As

Publication number Publication date
US3400225A (en) 1968-09-03
DE1285013B (en) 1968-12-12
BR6681203D0 (en) 1973-12-18
BE684041A (en) 1967-01-13
NL6609807A (en) 1967-01-16

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